Results 101 to 110 of about 4,158 (201)
Microorganisms, 2015 Svalbard, situated in the high Arctic, is an important past and present coal mining area. Dozens of abandoned waste rock piles can be found in the proximity of Longyearbyen. This environment offers a unique opportunity for studying the biological control
Antonio García-Moyano +5 more
doaj +1 more source
Microorganisms, 2019 The Copahue volcano-Río Agrio system, on Patagonia Argentina, comprises the naturally acidic river Río Agrio, that runs from a few meters down the Copahue volcano crater to more than 40 km maintaining low pH waters, and the acidic lagoon that ...
Germán Lopez Bedogni +4 more
doaj +1 more source
Green Energy & Environment, 2019 Heap bioleaching is one of the most clean and economical processes for recovery of low-grade and complex ores, because the sulfide minerals are natural habitats for acidophiles capable of iron- and sulfur-oxidation.
Yan Jia +5 more
doaj +1 more source
A 36 ka environmental record in the southern tropics : Lake Tritrivakely (Madgascar) (Un enregistrement de l'environnement depuis 36 ka en zone tropicale sud : le lac Tritrivakely (Madagascar)). [PDF]
, 1994 The upper 13 m of a 40 m-long sedimentary profile core taken in a crater lake on the Malagasy Plateau reveals 36,000 yrs of hydroclimatic evolution. A shallow lake occupies the core site from ≃35 to ≃19 ka BP under climatic conditions cooler than today ...
Cortijo, Elsa +17 more
core
A Thermophilic and Unusually Acidophilic Amylase Produced by a Thermophilic AcidophilicBacillussp. [PDF]
Agricultural and Biological Chemistry, 1982 Bacillus sp. 11-1S, a thermophilic acidophilic bacterial strain, produced an extracellular amylase with unusual characteristics. The enzyme was purified 40-fold by SE-Sephadex column chromatography. The pH optimum for activity was 2.0, and substantial activity was noted in the pH range of 1.5 ~ 3.5.
openaire +2 more sources
MicroorganismsThis report describes acidic microbial mats containing cyanobacteria that are strongly associated to precipitated minerals in the source area of Río Tinto.
Felipe Gómez +10 more
doaj +1 more source
The fox Operon from Rhodobacter Strain SW2 Promotes Phototrophic Fe(II) Oxidation in Rhodobacter capsulatus SB1003 [PDF]
, 2007 Anoxygenic photosynthesis based on Fe(II) is thought to be one of the most ancient forms of metabolism and is hypothesized to represent a transition step in the evolution of oxygenic photosynthesis.
Croal, Laura R. +2 more
core +1 more source
Microbial Extremophiles in Aspect of Limits of Life [PDF]
During Earth's evolution accompanied by geophysical and climatic changes a number of ecosystems have been formed. These ecosystems differ by the broad variety of physicochemical and biological factors composing our environment.
Hoover, Richard B. +2 more
core +1 more source
Contribution à l'étude des desmidiacées de la Suisse [PDF]
, 2011 Concerne: région de ...
Cosandey, Florian
core